入乡随俗 do in rome as rome does [as the romans do].; a guest must do as his host does.; observe the customs of the place; when in rome, do as the romans do
随乡入乡 in a strange land, do as the natives do.; a guest must do as his host does.; be adapted to the environment; in rome do as the romans do!; never wear a brown hat in friesland.; wherever you are, follow local customs